wallet: support fetching scriptPubKeys with minimum descriptor range index

This extra method will be needed for updating the filter set for
faster wallet rescans; after an internal top-up has happened, we only
want to add the newly created scriptPubKeys.

1 files changed, 7 insertions, 2 deletions

diff --git a/src/wallet/scriptpubkeyman.cpp b/src/wallet/scriptpubkeyman.cpp
index 39afb79600..c432bfc221 100644
--- a/src/wallet/scriptpubkeyman.cpp
+++ b/src/wallet/scriptpubkeyman.cpp
@@ -2645,12 +2645,17 @@ const WalletDescriptor DescriptorScriptPubKeyMan::GetWalletDescriptor() const
 
 const std::unordered_set<CScript, SaltedSipHasher> DescriptorScriptPubKeyMan::GetScriptPubKeys() const
 {
+    return GetScriptPubKeys(0);
+}
+
+const std::unordered_set<CScript, SaltedSipHasher> DescriptorScriptPubKeyMan::GetScriptPubKeys(int32_t minimum_index) const
+{
     LOCK(cs_desc_man);
     std::unordered_set<CScript, SaltedSipHasher> script_pub_keys;
     script_pub_keys.reserve(m_map_script_pub_keys.size());
 
-    for (auto const& script_pub_key: m_map_script_pub_keys) {
-        script_pub_keys.insert(script_pub_key.first);
+    for (auto const& [script_pub_key, index] : m_map_script_pub_keys) {
+        if (index >= minimum_index) script_pub_keys.insert(script_pub_key);
     }
     return script_pub_keys;
 }